Granted Patent
Utility
US 6,233,202 · App. 06/758,909
Dipping sonar transducer housing
Inventors:
Larry R. McDonald, Stanley Secretan
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Jul 25, 1985
Inventors
Larry R. McDonald
Stanley Secretan
Assignee (at issue)
AlliedSignal, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.